# Develop21 — AI Connector Develop21 publishes 22 MCP tools to Claude. Marketplace availability, tool surface, verification tier, and what Node8 measured against the live endpoint. Source: https://node8.ai/ai-connectors/productivity/develop21/ --- [AI Connectors](https://node8.ai/ai-connectors/) · [Productivity](https://node8.ai/ai-connectors/productivity/) # Develop21 Career profile, job tracking and resume tailoring that persists Listed in Claude · 22 published tools · Community-listed [Claude connector docs](https://develop21.ai/start) [develop21.ai](https://develop21.ai/) Overview ## What Develop21 does Develop21 keeps job search records outside the conversation. The described flow builds a career profile from a resume and a short interview, captures job postings pasted in or sent from a browser extension, and assesses fit in both directions, on the candidate's suitability and on whether the role is worth pursuing. From there it supports tailored resumes and cover letters, with the publisher stating that reframing is allowed and invented experience is not, and tracks applications from submitted through offer. Documents are stored to a Develop21 account, encrypted at rest, and available in later sessions. The publisher states the service never applies on anyone's behalf and never contacts employers. Twenty-two tools are claimed. ### Who it is for Job seekers running a long search who want the record to survive between chats. ### Tool surface Twenty-two tools cover profile, postings, documents and application status by the publisher's account; the server demands credentials before listing them, which follows from the data being one person's own record. Availability ## Where Develop21 is listed Develop21 is listed in the Claude connectors directory only. Develop21 LLC has no app under the same domain in the ChatGPT directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them. The MCP server behind a Claude connector is usually the same server a ChatGPT app would need, so the absence is a distribution decision rather than a technical one. Claude listing ## In the Claude connectors directory Develop21 publishes 22 tools to Claude, deeper than 72.2% of the 1,253 Claude-listed connectors. The median Claude-listed connector filed under Productivity publishes 12, so this one runs 10 tools above its bucket's median and ranks 133rd of 462 by tool count. It falls in the 21-50 tools band, which holds 20% of the Claude directory. Develop21 publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally. Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there. Publisher Develop21 LLC Verification Community-listed (61.5% of the Claude directory) Filed under Productivity Endpoint `https://mcp.develop21.ai/api/d21-6de08244/mcp` Documentation [Publisher setup docs](https://develop21.ai/start) Published tools 22 · 21-50 tools band Depth rank in Productivity 133 of 462 Snapshot August 2026 Develop21 is community-listed in the Claude directory, the tier 770 of 1,253 connectors sit in (61.5%). It is the default for a self-published server, and says nothing either way about quality. In the publisher's words ## How Develop21 LLC describes it > Develop21 turns your AI assistant into an honest career coach with a good memory. Connect once and Claude can build your career profile from your resume and a short conversation, capture job postings — pasted into chat, or sent with one click from the Develop21 Chrome extension, including LinkedIn pages your assistant can't read — and review your fit honestly in both directions: whether you're right for the job, and whether the job is right for you. A low score is real and saves you a week. From there, Develop21 helps Claude tailor your resume and draft cover letters with you in the employer's language — truthful reframing only, never invented experience — and tracks every application from applied to offer. Everything is stored to your Develop21 account, encrypted at rest (AES-256-GCM), and available in any future conversation: your career profile, your ten most recent job opportunities, and a document pack for each — the job description, the opportunity review, your tailored resume and cover letter. Develop21 never applies on your behalf, never contacts employers, never sends your content to any AI model itself, and never guarantees outcomes. Your assistant does the thinking on your own subscription; Develop21 keeps the record. Use it for free to track up to ten job opportunities at a time; Develop21 Storage ($4.95/month) removes the limits. View, download or delete everything at mcp.develop21.ai/account. Your account is created right in the connect flow — sign in with Google or email, no forms, no card. Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it. Nearby ## Other Productivity connectors ### [Bauta](https://node8.ai/ai-connectors/productivity/bauta/) Publish generated pages as private links with versions and rollback Claude ### [Beautiful.ai](https://node8.ai/ai-connectors/productivity/beautiful-ai/) Turns chat content into designed slide decks Claude · ChatGPT ### [Bigmind](https://node8.ai/ai-connectors/productivity/bigmind/) Sales context from meetings, CRM, pipeline and company knowledge Claude ### [Brief Slides](https://node8.ai/ai-connectors/productivity/brief-slides/) Turn a short prompt into a presentation ChatGPT ### [Career Adapter](https://node8.ai/ai-connectors/productivity/career-adapter/) Rewrites a resume against a specific job posting ChatGPT ### [CloudMindMaps](https://node8.ai/ai-connectors/productivity/cloudmindmaps/) Turn notes or documents into shareable FreeMind-compatible maps Claude [All 760 Productivity connectors](https://node8.ai/ai-connectors/productivity/) This is an independent catalogue entry compiled by Node8 from Develop21's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Develop21 LLC, and inclusion here is not an endorsement. ## Want your company reachable inside ChatGPT and Claude? Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot. [See how it works](https://node8.ai/mcp) Book a strategy session